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Volkswagen MK4 Engine Cooling Parts

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heater box clip - priced each

ES#331436 - 321819059 - heater box clip - priced each - Secures heater box halves together - Genuine Volkswagen Audi - Volkswagen

Secures heater box halves together

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
331436
Mfg#:
321819059
Ships in 1-2 days
10% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$9.99

This product was last offered at the strikethrough price on
07-29-2026

$8.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Multipurpose Relay - Priced Each

ES#2899228 - 4H0951253A - Multipurpose Relay - Priced Each - Replacement 4-pin/40 amp relay - Vemo - Audi Volkswagen

Replacement 4-pin/40 amp relay

Brand:
Vemo - Corporate Logo
ES#:
2899228
Mfg#:
4H0951253A
In Stock
$9.99

This product was last offered at the strikethrough price on
07-08-2026

$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Fan Switch 95-102C

ES#2897276 - 1J0959481A - Radiator Fan Switch 95-102C - Triangular Connector - Vemo - Audi Volkswagen

Triangular Connector For vehicles with FSI engine only

Brand:
Vemo - Corporate Logo
ES#:
2897276
Mfg#:
1J0959481A
In Stock at Vendor
$21.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

stainless steel water pump bolt set

ES#2826608 - 10121006K - stainless steel water pump bolt set - replace water pump bolts before they fail - Autotech - Volkswagen

replace water pump bolts before they fail

Brand:
Autotech - Corporate Logo
ES#:
2826608
Mfg#:
10121006K
Ships in 3 Business Days
$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sealing O-Ring - Priced Each

ES#3550934 - 037121687 - Sealing O-Ring - Priced Each - Install a new o-ring for a proper seal. 36x3.15 - Elring - Audi Volkswagen

Install a new o-ring for a proper seal. 36x3.15 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
3550934
Mfg#:
037121687
In Stock at Vendor
$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Upper

ES#2695452 - 1J0122101R - Radiator Hose - Upper - From radiator to coolant flange - Rein - Volkswagen

From radiator to coolant flange 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with BBW, BEV, AZG, or AVH engine code only

Brand:
Rein - Corporate Logo
ES#:
2695452
Mfg#:
1J0122101R
In Stock at Vendor
$42.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Aluminum Split Pipe Coolant Fitting Kit

ES#2795553 - 006368ECS01AKT - Aluminum Split Pipe Coolant Fitting Kit - Sturdy aluminum fitting with installation hardware and coolant - Assembled By ECS - Audi Volkswagen

Sturdy aluminum fitting with installation hardware and coolant 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2795553
Mfg#:
006368ECS01AKT
Ships in 1-2 days
ON SALE! SAVE 21%
$108.41

This product was last offered at the strikethrough price on
05-02-2026

$85.55 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Check Valve - Priced Each

ES#307295 - 1J0122351 - Check Valve - Priced Each - Keeps coolant flowing in only one direction - Genuine Volkswagen Audi - Volkswagen

Keeps coolant flowing in only one direction

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
307295
Mfg#:
1J0122351
Ships in 1-2 days
7% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$89.99

This product was last offered at the strikethrough price on
07-29-2026

$83.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor With O-Ring & Clip - 4 Pin

ES#1484 - 059919501AKT - Coolant Temperature Sensor With O-Ring & Clip - 4 Pin - Updated Green sensor with square/round connector. Please check existing sensor color - URO - Audi Volkswagen

Updated <font color='green'>Green</font> sensor with square/round connector. Please check existing sensor color 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
1484
Mfg#:
059919501AKT
In Stock
$20.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Autobahn Autoworx Radiator Hose Kit

ES#4429823 - AUTMK4004 - Autobahn Autoworx Radiator Hose Kit - Three piece upper and lower radiator hose kit - Autobahn Autoworx - Volkswagen

Three piece upper and lower radiator hose kit

Brand:
Autobahn Autoworx - Corporate Logo
ES#:
4429823
Mfg#:
AUTMK4004
Ships in 3 Business Days
Starting at $82.99 USD
Customize
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Primary Fan Assembly - 345MM

ES#3142766 - 6X0959455FG - Primary Fan Assembly - 345MM - Main fan responsible for pulling air through your radiator. - Hudson - Audi Volkswagen

Main fan responsible for pulling air through your radiator.

Brand:
Hudson - Corporate Logo
ES#:
3142766
Mfg#:
6X0959455FG
Ships in 4 Business Days
$81.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Fan Assembly - 345MM

ES#2568750 - 1J0959455S - Auxiliary Fan Assembly - 345MM - Main fan responsible for pulling air through your radiator. - ACM - Audi Volkswagen

Main fan responsible for pulling air through your radiator.

Brand:
ACM - Corporate Logo
ES#:
2568750
Mfg#:
1J0959455S
Back Ordered
$84.99

This product was last offered at the strikethrough price on
05-07-2026

$81.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Engine Oil Cooler

ES#3190245 - 918-140 - Engine Oil Cooler - Common source of leaks, mounted between your oil filter and engine block - Dorman - Audi Volkswagen

Common source of leaks, mounted between your oil filter and engine block

Brand:
Dorman - Corporate Logo
ES#:
3190245
Mfg#:
918-140
Ships in 5 Business Days
$40.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

ES#3458240 - 038121121D - Thermostat Housing - Common point of failure for the cooling system on your TDI - URO - Volkswagen

Common point of failure for the cooling system on your TDI 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with BEW engine code only

Brand:
URO - Corporate Logo
ES#:
3458240
Mfg#:
038121121D
In Stock
$3.38 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump

ES#3523409 - 03L121011G - Water Pump - Keep your coolant flowing to prevent overheating with a Meyle Heavy Duty water pump! - Meyle HD - Audi Volkswagen

Keep your coolant flowing to prevent overheating with a Meyle Heavy Duty water pump! 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with BEW engine code only

Brand:
Meyle HD - Corporate Logo
ES#:
3523409
Mfg#:
03L121011G
Ships on Dec 9, 2026
$80.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

ES#248561 - 022121117C - Thermostat Housing - Common point of failure or leaking for the cooling system - OE Aftermarket - Audi Volkswagen

Common point of failure or leaking for the cooling system

Brand:
OE Aftermarket - Corporate Logo
ES#:
248561
Mfg#:
022121117C
Ships in 4 Business Days
34% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$60.50

This product was last offered at the strikethrough price on
07-29-2026

$39.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Cooling Parts

Optimize your engine cooling system performance and heater output with quality drive belts, coolant hoses, cooling system parts, and approved coolant fluids from ECS Tuning. Head off expensive repairs and untimely breakdowns with regularly scheduled cooling system inspection and maintenance.

Let us help you find the parts that fit your Volkswagen

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Manufacturer names and/or part numbers are used only for identification purposes.

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